Passive House building certification is based on four fundamental requirements.
1. Space Heat Demand: 4.75 kBTU/(ft2/yr)
2. Specific Primary Energy Demand: 38.0 kBTU/(ft2/yr)
3. Maximum Air Leakage: 0.6 air changes per hour at 50 Pascals (ACH50)
4. Specific Useful Cooling Energy Demand: 4.75 kBTU/(ft2/yr)
In the United States the PHPP along with supporting documentation must be submitted to the Passive House Institute U.S. (PHIUS) for examination and compliance determination. PHIUS is the official and sole Certifier of Passive Houses in the US as authorized by the Passivhaus Institut (PHI).
A basic outline of required documentation:
1. Accurate compliance modeling with the Passive House Planning Package (PHPP)
2. Third party verified blower door test, 0.6 ACH50 maximum
3. Record of adjustment of ventilation system
4. Declaration of Construction Supervisor
5. Photographic Documentation
With a positive determination, PHIUS issues an official certificate of compliance. For a detailed outline of submission requirements and
process, contact PHIUS. Note: To successfully execute a Passive House it is encouraged that you engage a certified Passive House
consultant or take the training to become one yourself.
Certified Passive House consultants have completed a rigorous 9 day seminar and final examination insuring a comprehensive
understanding of the methodology. If you are interested in becoming a certified consultant, contact PHIUS for more information.
PHI certifies important building components such as windows and high efficiency heat exchange ventilators allowing designers and builders added confidence that the methodology goals will be met. NYPH directories will have a growing list of certified products to reference.